Bosonic formulas for affine branching functions

Research paper by E. Feigin

Indexed on: 17 Apr '06Published on: 17 Apr '06Published in: Mathematics - Quantum Algebra


In this paper we derive two bosonic (alternating sign) formulas for branching functions for general affine Kac-Moody Lie algebra $\g$. Both formulas are given in terms of the Weyl group and string functions of $\g$.